[Ips-dhfpr] IPS Daily HF Prop Report - 21 April 16 issued 2330 UT on 21 Apr 2016 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Fri Apr 22 09:30:56 EST 2016
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 APRIL 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (21 APRIL)
Date T index Conditions
21 Apr 20 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
Depressed by 15% during local day.
Depressed by 35% during local night.
Niue Island Region:
Depressed by 20% during local day.
Depressed by 45% during local night.
Northern Australian Region:
Depressed by 20% during local day.
Depressed by 35% during local night.
Southern Australian Region:
Depressed by 15% during local day.
Depressed by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Mar 50
Apr 50
May 49
2. FORECAST (22 APRIL - 24 APRIL)
Date T index Conditions MUFs
22 Apr 20 Normal-fair Depressed 20 %/near predicted
monthly values
23 Apr 10 Fair-poor About 20% below predicted monthly
values
24 Apr 10 Fair-poor About 20% below predicted monthly
values
COMMENT: IPS HF Communications Warning 20 was issued on 20 April
and is current for 20-22 Apr. Conditions for HF radio propagation
on UT day 21 Apr were generally mildly depressed over all Australian
regions. Conditions are expected to be mildly depressed today,
22 Apr. The above HF conditions are mainly associated with low
incoming solar ionising flux. On UT days 23-24 Apr, the mid and
high latitude regions could experience slightly stronger MUF
depressions in response to the expected active geomagnetic conditions
on 23 Apr.
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For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Space Weather Services email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386 WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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